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    and revisit the ones you got wrong.

2. Track your GMAT Official Guide
    (OG13) performance (Set #29-36)

3. View video explanations



  Favorite Question Type Views % who got
it correct
Your
Answer
Correct
Answer
GMAT Practice Set # 1  
GMAT Problem Solving # 1 : Coordinate Triangles
 
  Geometry (Coordinates) 19151 63% View Show
GMAT Problem Solving # 2 : Numberline Reciprocals
 
  Numberline 15999 53% View Show
GMAT Problem Solving # 3 : Perimeter of a Triangle
  Geometry 14283 59% View Show
GMAT Practice Set # 2  
GMAT Problem Solving # 4 : Basic Algebraic Expression
  Algebra 9827 92% View Show
GMAT Problem Solving # 5 : Infinite Sequence
  Number Properties 9674 73% View Show
GMAT Problem Solving # 6 : Prime Number Properties
  Number Properties 9396 94% View Show
GMAT Practice Set # 3  
GMAT Problem Solving # 7 : Algebraic Expression
  Algebra 8901 68% View Show
GMAT Problem Solving # 8 : Sarah Sales Tax
  Word Problem (Algebra) 9237 57% View Show
GMAT Problem Solving # 9 : Odd and Even Integers
  Number Properties 20397 68% View Show
GMAT Practice Set # 4  
GMAT Problem Solving # 10 : Exponential Products
  Number Properties (Exponents) 7093 83% View Show
GMAT Problem Solving # 11 : Quarter of a Circle
  Geometry (Circles) 7746 75% View Show
GMAT Problem Solving # 12 : Square Root Estimation
  Algebra (Roots) 6876 80% View Show
GMAT Practice Set # 5  
GMAT Problem Solving # 13 : Hypothetical Functions
  Functions 7304 62% View Show
GMAT Problem Solving # 14 : Inscribed Circle
  Geometry 8121 66% View Show
GMAT Problem Solving # 15 : Basic and 3D TVs
 
  Word Problem (Algebra) 7817 55% View Show
GMAT Practice Set # 6  
GMAT Problem Solving # 16 : Numerical Properties
  Numberline 8012 66% View Show
GMAT Problem Solving # 17 : Area of a Diagram
  Word Problem (Geometry) 7361 63% View Show
GMAT Problem Solving # 18 : Factorial Calculations
  Number Properties (Factorial) 6273 83% View Show
GMAT Practice Set # 7  
GMAT Problem Solving # 19 : Inequality Graph
  Numberline 6209 73% View Show
GMAT Problem Solving # 20 : Inscribed Triangle
  Geometry 7954 82% View Show
GMAT Problem Solving # 21 : Arithmetic Mean
  Number Properties (Average) 6141 76% View Show
GMAT Practice Set # 8  
GMAT Problem Solving # 22 : Fractional Exponent Equation
  Algebra (Exponents) 6404 74% View Show
GMAT Problem Solving # 23 : Exponent Manipulation
  Algebra (Exponents) 6792 86% View Show
GMAT Problem Solving # 24 : Colleague Retirement
  Word Problem (Algebra) 5967 63% View Show
GMAT Practice Set # 9  
GMAT Problem Solving # 25 : Take Home Pay
  Word Problem (Algebra) 6711 54% View Show
GMAT Problem Solving # 26 : Functions with Two Variables
  Functions 5412 64% View Show
GMAT Problem Solving # 27 : Dividing Functions
  Functions 4574 77% View Show
GMAT Practice Set # 10  
GMAT Problem Solving # 28 : Difference of Squres
  Number Properties (Squares) 4842 74% View Show
GMAT Problem Solving # 29 : Square Root of Difference of Squares
  Algebra (Roots) 7873 88% View Show
GMAT Problem Solving # 30 : Circular Ring With Thickness
  Geometry (Circles) 6419 60% View Show
GMAT Practice Set # 11  
GMAT Problem Solving # 31 : Choosing Among Twins
  Word Problem: MultiLayered Combination (nCr) 10211 51% View Show
GMAT Problem Solving # 32 : Semicircle Coordinates
  Geometry (Coordinates) 5477 55% View Show
GMAT Problem Solving # 33 : Triangular Area
  Geometry (Triangle) 6311 57% View Show
GMAT Practice Set # 12  
GMAT Problem Solving # 34 : Double Triangle
  Geometry (Triangle) 5502 80% View Show
GMAT Problem Solving # 35 : Isosceles Right Triangle
  Geometry (Triangle) 6000 48% View Show
GMAT Problem Solving # 36 : Triangle and Square
  Geometry 5438 63% View Show
GMAT Practice Set # 13  
GMAT Problem Solving # 37 : Prime Sums
  Number Properties (Prime Numbers) 4936 89% View Show
GMAT Problem Solving # 38 : Combining Integers: Even or Odd
  Number Properties 4543 74% View Show
GMAT Problem Solving # 39 : Internal Review Interviews
  Word Problem (Probability) 4840 73% View Show
GMAT Practice Set # 14  
GMAT Problem Solving # 40 : Committee Probability
  Word Problem (Combinations) 5558 75% View Show
GMAT Problem Solving # 41 : Three teams of two people each
  Combination / Permutation 6433 59% View Show
GMAT Problem Solving # 42 : Subtracting Exponents
  Number Properties (Prime Numbers) 5533 54% View Show
GMAT Practice Set # 15  
GMAT Problem Solving # 43 : Smoothie Mixtures
  Word Problem (Mixtures) 5736 52% View Show
GMAT Problem Solving # 44 : Cleaning a Yacht
  Word Problem (Work) 4523 83% View Show
GMAT Problem Solving # 45 : Treadmill Running
  Word Problem (Work) 8678 20% View Show
GMAT Practice Set # 16  
GMAT Problem Solving # 46 : Algebraic Definition
  Algebra (Roots) 4541 73% View Show
GMAT Problem Solving # 47 : Basketball - Who Is on my team
 
  Combination / Permutation 5048 66% View Show
GMAT Problem Solving # 48 : Basketball Representatives
  Combination / Permutation 5425 58% View Show
GMAT Practice Set # 17  
GMAT Problem Solving # 49 : Basketball - Who is on my team (B)
  Combination / Permutation 20172 30% View Show
GMAT Problem Solving # 50 : Mini-Volleyball Teams
  Combination / Permutation 5024 58% View Show
GMAT Problem Solving # 51 : Team Assignments
  Probabilities 4039 78% View Show
GMAT Practice Set # 18  
GMAT Problem Solving # 52 : Taxi and Bus
  Rates 4827 67% View Show
GMAT Problem Solving # 53 : Racing Cars
  Rates 3596 81% View Show
GMAT Problem Solving # 54 : Kickball Competition
  Combination / Permutation 3417 82% View Show
GMAT Practice Set # 19  
GMAT Problem Solving # 55 : Mixing Rice
  Mixtures 4019 79% View Show
GMAT Problem Solving # 56 : Sand and Soil
  Mixtures 4376 55% View Show
GMAT Problem Solving # 57 : Dating Among Threes
  Combination / Permutation 3511 73% View Show
GMAT Practice Set # 20  
GMAT Problem Solving # 58 : Dating Among A Set of Medical Interns
  Combination / Permutation 4094 63% View Show
GMAT Problem Solving # 59 : Paycheck Averages
  3370 69% View Show
GMAT Problem Solving # 60 : Class Assignments
  Probabilities 4899 38% View Show
GMAT Practice Set # 21  
GMAT Problem Solving # 61 : Choosing a Literature Panel
  Combination / Permutation 3615 58% View Show
GMAT Problem Solving # 62 : Units Digit of Exponents
  Number Properties 4022 50% View Show
GMAT Problem Solving # 63 : Big Number divisible by 11
  Number Properties (divisibility) 3552 55% View Show
GMAT Practice Set # 22  
GMAT Problem Solving # 64 : Expression Divisible by 3
  Divisibility 3822 51% View Show
GMAT Problem Solving # 65 : Expression Not Divisible By
  Divisibility 3060 88% View Show
GMAT Problem Solving # 66 : Sum of Expression for 10 Integers
  Sum of Sequence 3388 59% View Show
GMAT Practice Set # 23  
GMAT Problem Solving # 67 : Triple Repayment Plan
  Sum of Sequence 3744 51% View Show
GMAT Problem Solving # 68 : Divisibility for Large Number
  Divisibility 3757 66% View Show
GMAT Problem Solving # 69 : Cooking Teams
  Combination / Permutation 3361 49% View Show
GMAT Practice Set # 24  
GMAT Problem Solving # 70 : Sum of Even Integers 102-200
  Sum of Sequence 2568 71% View Show
GMAT Problem Solving # 71 : Probability At Least 1 Pair
  Combination / Permutation 4566 44% View Show
GMAT Problem Solving # 72 : Hacking a Password
  Combination / Permutation 4131 60% View Show
GMAT Practice Set # 25  
GMAT Problem Solving # 73 : Length of Arc
  Geometry (Circles) 4167 53% View Show
GMAT Problem Solving # 74 : Fair Coin Toss 5 Times (ways)
  Combination / Permutation 3881 33% View Show
GMAT Problem Solving # 75 : Gallon Consumption Comparison
  Rate Problem 3120 69% View Show
GMAT Practice Set # 26  
GMAT Problem Solving # 76 : Car Seating Arrangement
  Combination / Permutation 6029 59% View Show
GMAT Problem Solving # 77 : Probability of a Digit in a 3-digit Number
  Number Properties (Digits) 3891 41% View Show
GMAT Problem Solving # 78 : Least Common Multiple Thru 8
  Number Properties (LCM) 2873 71% View Show
GMAT Practice Set # 27  
GMAT Problem Solving # 79 : Quality Control on Glass Smartphones
  Probability 3360 53% View Show
GMAT Problem Solving # 80 : Integrated Team Formations
  Combination / Permutation 2520 88% View Show
GMAT Problem Solving # 81 : Exponent Manipulation
  Exponents 2691 88% View Show
GMAT Practice Set # 28  
GMAT Problem Solving # 82 : Red Striped Golf Balls
 
  Probability 2882 74% View Show
GMAT Problem Solving # 83 : Sum of Two Exponents
  Number Properties (Exponent) 2886 77% View Show
GMAT Problem Solving # 84 : Passwords 4 or 5 characters
  Combination / Permutation 3269 41% View Show
GMAT Practice Set # 29  
GMAT Problem Solving # 85
  2043 69% View Show
GMAT Problem Solving # 86 : OG13-230
 
  Large Exponents 3535 56% View Show
GMAT Problem Solving # 87 : OG13-229
 
  Fractional Inequality 3593 40% View Show
GMAT Practice Set # 30  
GMAT Problem Solving # 88 : OG13-228
 
  Coordinate Geometry 2828 54% View Show
GMAT Problem Solving # 89 : OG13-227
 
  Decimal and Powers of 10 2221 62% View Show
GMAT Problem Solving # 90 : OG13-226
 
  Word Problem (Fractions) 2146 72% View Show
GMAT Practice Set # 31  
GMAT Problem Solving # 91 : OG13-225
 
  Odd and Even Integers 2027 70% View Show
GMAT Problem Solving # 92 : OG13-224
 
  Mixtures 3044 67% View Show
GMAT Problem Solving # 93 : OG13-223
 
  Algebra 1533 83% View Show
GMAT Practice Set # 32  
GMAT Problem Solving # 94 : OG13-222
 
  Venn Diagram 2197 75% View Show
GMAT Problem Solving # 95 : OG13-221
 
  Number Properties (Consecutive Integers) 1396 87% View Show
GMAT Problem Solving # 96 : OG13-220
 
  Algebra (Fractions) 1510 91% View Show
GMAT Practice Set # 33  
GMAT Problem Solving # 97 : OG13-219
 
  Word Problem (Factors) 1575 76% View Show
GMAT Problem Solving # 98 : OG13-218
 
  Decimal Digits 3013 30% View Show
GMAT Problem Solving # 99 : OG 13-217
 
  Fractions, Negative Exponents 1699 90% View Show
GMAT Practice Set # 34  
GMAT Problem Solving # 100 : OG13-216
 
  Fractions and Equations 1801 83% View Show
GMAT Problem Solving # 101 : OG13-215
 
  Word Problem (Probability) 1797 78% View Show
GMAT Problem Solving # 102 : OG13-214
 
  Word Problem (Algebra) 1607 68% View Show
GMAT Practice Set # 35  
GMAT Problem Solving # 103 : OG13-213
 
  Geometry 1693 85% View Show
GMAT Problem Solving # 104 : OG13-212
 
  Number Properties 1729 86% View Show
GMAT Problem Solving # 105 : OG13-211
 
  Geometry (Coordinates) 1433 67% View Show
GMAT Practice Set # 36  
GMAT Problem Solving # 106 : OG13-210
 
  Geometry (Lines and Angles) 1547 86% View Show
GMAT Problem Solving # 107 : OG13-209
 
  Algebra 2265 56% View Show
GMAT Problem Solving # 108 : Function of y and 1-y
  Functions 2017 66% View Show
GMAT Practice Set # 37  
GMAT Problem Solving # 109 : Committee at most 1 married couple
  Combination / Permutation 3244 28% View Show
GMAT Problem Solving # 110 : MBA Admissions Committee
  Combination / Permutation 3076 39% View Show
GMAT Problem Solving # 111 : MBA Admissions Committee 2
  Combination / Permutation 3092 28% View Show
GMAT Practice Set # 38  
GMAT Problem Solving # 112 : Marbles in Pockets
  Combination / Permutation 3528 9% View Show
GMAT Problem Solving # 113 : Marbles in Pockets 2
  Combination / Permutation 3133 25% View Show
GMAT Problem Solving # 114 : Mixed Tennis
  Combination / Permutation 2794 21% View Show
GMAT Practice Set # 39  
GMAT Problem Solving # 115 : Movie Date and Couples
  Combination / Permutation 2883 34% View Show
GMAT Problem Solving # 116 : Probability of divisibility
  Divisibility 2794 29% View Show
GMAT Problem Solving # 117 : Roll a Double Dice
  Probability 2625 58% View Show
GMAT Practice Set # 40  
GMAT Problem Solving # 118 : Right Triangle in Circle
  Geometry 2142 81% View Show
GMAT Problem Solving # 119 : Maxwell and Brad Meet 1
  Rate Problem 2188 84% View Show
GMAT Problem Solving # 120 : Maxwell and Brad Meet 2
  Rate Problem 1984 81% View Show
GMAT Practice Set # 41  
GMAT Problem Solving # 121 : Maxwell and Brad Meet 3
  Rate Problem 2524 68% View Show
GMAT Problem Solving # 122 : Maxwell and Brad Meet 4
  Rate Problem 2300 74% View Show
GMAT Problem Solving # 123 : Less than 10 percent both are male
  Combination / Permutation 2140 38% View Show
GMAT Practice Set # 42  
GMAT Problem Solving # 124 : Triplets in Triathlon
  Combinatorics 1282 54% View Show
GMAT Problem Solving # 125 : Expression must be an integer
  Divisibility 1340 42% View Show
GMAT Problem Solving # 126 : Products and Factors
  1506 32% View Show
GMAT Practice Set # 43  
GMAT Problem Solving # 127 : Geometry
  Squares & Triangles 2237 27% View Show
GMAT Problem Solving # 128 : Circle inscribed in Triangle
  Geometry (Circles and Triangles) 2174 30% View Show
GMAT Practice Set # 44  
GMAT Problem Solving # 129 : Python and Rails Developers
  Combination / Permutation 3462 61% View Show
GMAT Problem Solving # 130 : Algebraic Expression with Exponents
  Algebra (Exponents) 2631 71% View Show
GMAT Problem Solving # 131 : Square Root of a Number
  Algebra (Roots) 2631 86% View Show
GMAT Practice Set # 45  
GMAT Problem Solving # 132 : Demographic Statistics
  Word Problem (Probability) 3835 47% View Show
GMAT Problem Solving # 133 : Simple Arithmetic
  Word Problem (Algebra) 2513 91% View Show
GMAT Problem Solving # 134 : Sales of Diamond Rings
  Word Problem (Algebra) 2616 71% View Show
GMAT Practice Set # 46  
GMAT Problem Solving # 135 : Inequality Solution Sets
  Numberline 4937 41% View Show
GMAT Problem Solving # 136 : Chemical Air Ventillation
  Word Problem (Work) 2490 77% View Show
GMAT Problem Solving # 137 : Accounting and Gender
  Word Problem (Probability) 2907 69% View Show
GMAT Practice Set # 47  
GMAT Problem Solving # 138 : Semicircle Coordinates
  Word Problem (Geometry) 2458 54% View Show
GMAT Problem Solving # 139 : Flexible Rubber Belt
  Circles and Shapes 2679 64% View Show
GMAT Problem Solving # 140 : Monthly Savings
  Word Problem (Fractions) 2410 60% View Show
GMAT Practice Set # 48  
GMAT Problem Solving # 141 : Function Constraints
  Number Properties (Functions) 1829 70% View Show
GMAT Problem Solving # 142 : Growth in Population
  Word Problem (Arithmetic) 2102 80% View Show
GMAT Problem Solving # 143 : Snack Sales
  World Problem (Arithmetic) 1758 77% View Show
GMAT Practice Set # 49  
GMAT Problem Solving # 144 : Area of Triangle
  Geometry (Triangle) 3367 43% View Show
GMAT Problem Solving # 145 : Sum of Squares
  Number Properties (Squares) 2796 60% View Show
GMAT Problem Solving # 146 : Basket Ratios
  Algebra 2373 53% View Show
GMAT Practice Set # 50  
GMAT Problem Solving # 147 : Rectangle Ratios
  Geometry 2569 66% View Show
GMAT Problem Solving # 148 : Headcount Reduction
  Algebra 2971 54% View Show
GMAT Problem Solving # 149 : Area of Two New Shapes
  Geometry 2055 71% View Show
GMAT Practice Set # 51  
GMAT Problem Solving # 150 : Hiring Assistant Managers
  Combination / Permutation 1953 71% View Show
GMAT Problem Solving # 151 : Unit Sales for Products
  Arithemtic (mean/median) 1729 78% View Show
GMAT Problem Solving # 152 : Advising Banking Deals
  Combination / Permutation 1988 69% View Show
GMAT Practice Set # 52  
GMAT Problem Solving # 153 : Average Car Speed
  Rate Problem 2070 72% View Show
GMAT Problem Solving # 154 : Conference Table Arrangements
  Combination / Permutation 2061 69% View Show
GMAT Problem Solving # 155 : Picking a Lab Partner
  Combination / Permutation 2011 39% View Show
GMAT Practice Set # 53  
GMAT Problem Solving # 156 : Apartment Bidding War
  Arithemtic (mean/median) 1835 93% View Show
GMAT Problem Solving # 157 : Even Expression
  Algebra 2108 65% View Show
GMAT Problem Solving # 158 : Bond Investment Yields
  Algebra 2630 60% View Show
GMAT Practice Set # 54  
GMAT Problem Solving # 159 : Sequencing the Human Genome (num days)
  Rate Problem 2117 74% View Show
GMAT Problem Solving # 160 : Circular Gears
  Rate Problem 5339 74% View Show
GMAT Problem Solving # 161 : Hiring in 3 Locations
  Probabilities 1829 79% View Show
GMAT Practice Set # 55  
GMAT Problem Solving # 162 : Finding a Co-Founder
  Combination / Permutation 2023 62% View Show
GMAT Problem Solving # 163 : Circle Arrangements
  Combination / Permutation 2365 52% View Show
GMAT Problem Solving # 164 : Sequencing the Human Genome (num machines)
  Rate Problem 2147 67% View Show
GMAT Practice Set # 56  
GMAT Problem Solving # 165 : Sequencing the Human Genome (different num of computers)
  Rate Problem 2056 64% View Show
GMAT Problem Solving # 166 : Area of Square Region
  Geometry 2973 61% View Show
GMAT Problem Solving # 167 : Warehouse Digits Leading Zeros
  Variations 2638 45% View Show
GMAT Practice Set # 57  
GMAT Problem Solving # 168 : Choosing a Literature Panel
  Combination / Permutation 1925 65% View Show
GMAT Problem Solving # 169 : Investing in Savings Account
  Interest Rate 1776 38% View Show
GMAT Problem Solving # 170 : Investing in Savings Account - interest
  Interest Rate 1565 62% View Show
GMAT Practice Set # 58  
GMAT Problem Solving # 171 : Sum of Expression for 11 Integers
  Sum of Sequence 2590 60% View Show
GMAT Problem Solving # 172 : Sum of Expression for 5 Integers
  Sum of Sequence 2149 62% View Show
GMAT Problem Solving # 173 : Sum of Expression for Even Integers
  Sum of Sequence 2696 36% View Show
GMAT Practice Set # 59  
GMAT Problem Solving # 174 : Sum of First 50 Odd Integers
  Sum of Sequence 2586 74% View Show
GMAT Problem Solving # 175 : Sum of Odd Integers 102-200
  Sum of Sequence 3031 67% View Show
GMAT Problem Solving # 176 : Length of Arc Tip
  Geometry (Circles) 2608 63% View Show
GMAT Practice Set # 60  
GMAT Problem Solving # 177 : Fair Coin Toss 5 Times (probability)
  Combination / Permutation 3342 37% View Show
GMAT Problem Solving # 178 : Car Seating Arrangement (father in back)
  Combination / Permutation 2311 49% View Show
GMAT Problem Solving # 179 : Car Seating Arrangement (father center back)
  Combination / Permutation 1814 86% View Show
GMAT Practice Set # 61  
GMAT Problem Solving # 180 : Car Seating Arrangement (Matt Peter cannot sit next to each other)
  Combination / Permutation 3014 42% View Show
GMAT Problem Solving # 181 : Circular Seating Table
  Combinatorics 2560 60% View Show
GMAT Problem Solving # 182 : Algebraic Equality
  Algebra 2005 67% View Show
GMAT Practice Set # 62  
GMAT Problem Solving # 183 : Sharing Donuts
  Combinatorics 2654 29% View Show
GMAT Problem Solving # 184 : Distance Rate Question
  Rates 2148 58% View Show
GMAT Problem Solving # 185 : Looking into the Pool
  Geometry 1662 79% View Show
GMAT Practice Set # 63  
GMAT Problem Solving # 186 : Function as Product of All Odd Integers
  Number Properties 1686 62% View Show
GMAT Practice Set Favorite Question Type Views % who got it correct Your Answer Correct Answer
GMAT Practice Set # 1          
GMAT Problem Solving # 1 : Coordinate Triangles
 
  Geometry (Coordinates) 19151 63% View Show
GMAT Problem Solving # 2 : Numberline Reciprocals
 
  Numberline 15999 53% View Show
GMAT Problem Solving # 3 : Perimeter of a Triangle
  Geometry 14283 59% View Show
GMAT Practice Set # 2          
GMAT Problem Solving # 4 : Basic Algebraic Expression
  Algebra 9827 92% View Show
GMAT Problem Solving # 5 : Infinite Sequence
  Number Properties 9674 73% View Show
GMAT Problem Solving # 6 : Prime Number Properties
  Number Properties 9396 94% View Show
GMAT Practice Set # 3          
GMAT Problem Solving # 7 : Algebraic Expression
  Algebra 8901 68% View Show
GMAT Problem Solving # 8 : Sarah Sales Tax
  Word Problem (Algebra) 9237 57% View Show
GMAT Problem Solving # 9 : Odd and Even Integers
  Number Properties 20397 68% View Show
GMAT Practice Set # 4          
GMAT Problem Solving # 10 : Exponential Products
  Number Properties (Exponents) 7093 83% View Show
GMAT Problem Solving # 11 : Quarter of a Circle
  Geometry (Circles) 7746 75% View Show
GMAT Problem Solving # 12 : Square Root Estimation
  Algebra (Roots) 6876 80% View Show
GMAT Practice Set # 5          
GMAT Problem Solving # 13 : Hypothetical Functions
  Functions 7304 62% View Show
GMAT Problem Solving # 14 : Inscribed Circle
  Geometry 8121 66% View Show
GMAT Problem Solving # 15 : Basic and 3D TVs
 
  Word Problem (Algebra) 7817 55% View Show
GMAT Practice Set # 6          
GMAT Problem Solving # 16 : Numerical Properties
  Numberline 8012 66% View Show
GMAT Problem Solving # 17 : Area of a Diagram
  Word Problem (Geometry) 7361 63% View Show
GMAT Problem Solving # 18 : Factorial Calculations
  Number Properties (Factorial) 6273 83% View Show
GMAT Practice Set # 7          
GMAT Problem Solving # 19 : Inequality Graph
  Numberline 6209 73% View Show
GMAT Problem Solving # 20 : Inscribed Triangle
  Geometry 7954 82% View Show
GMAT Problem Solving # 21 : Arithmetic Mean
  Number Properties (Average) 6141 76% View Show
GMAT Practice Set # 8          
GMAT Problem Solving # 22 : Fractional Exponent Equation
  Algebra (Exponents) 6404 74% View Show
GMAT Problem Solving # 23 : Exponent Manipulation
  Algebra (Exponents) 6792 86% View Show
GMAT Problem Solving # 24 : Colleague Retirement
  Word Problem (Algebra) 5967 63% View Show
GMAT Practice Set # 9          
GMAT Problem Solving # 25 : Take Home Pay
  Word Problem (Algebra) 6711 54% View Show
GMAT Problem Solving # 26 : Functions with Two Variables
  Functions 5412 64% View Show
GMAT Problem Solving # 27 : Dividing Functions
  Functions 4574 77% View Show
GMAT Practice Set # 10          
GMAT Problem Solving # 28 : Difference of Squres
  Number Properties (Squares) 4842 74% View Show
GMAT Problem Solving # 29 : Square Root of Difference of Squares
  Algebra (Roots) 7873 88% View Show
GMAT Problem Solving # 30 : Circular Ring With Thickness
  Geometry (Circles) 6419 60% View Show
GMAT Practice Set # 11          
GMAT Problem Solving # 31 : Choosing Among Twins
  Word Problem: MultiLayered Combination (nCr) 10211 51% View Show
GMAT Problem Solving # 32 : Semicircle Coordinates
  Geometry (Coordinates) 5477 55% View Show
GMAT Problem Solving # 33 : Triangular Area
  Geometry (Triangle) 6311 57% View Show
GMAT Practice Set # 12          
GMAT Problem Solving # 34 : Double Triangle
  Geometry (Triangle) 5502 80% View Show
GMAT Problem Solving # 35 : Isosceles Right Triangle
  Geometry (Triangle) 6000 48% View Show
GMAT Problem Solving # 36 : Triangle and Square
  Geometry 5438 63% View Show
GMAT Practice Set # 13          
GMAT Problem Solving # 37 : Prime Sums
  Number Properties (Prime Numbers) 4936 89% View Show
GMAT Problem Solving # 38 : Combining Integers: Even or Odd
  Number Properties 4543 74% View Show
GMAT Problem Solving # 39 : Internal Review Interviews
  Word Problem (Probability) 4840 73% View Show
GMAT Practice Set # 14          
GMAT Problem Solving # 40 : Committee Probability
  Word Problem (Combinations) 5558 75% View Show
GMAT Problem Solving # 41 : Three teams of two people each
  Combination / Permutation 6433 59% View Show
GMAT Problem Solving # 42 : Subtracting Exponents
  Number Properties (Prime Numbers) 5533 54% View Show
GMAT Practice Set # 15          
GMAT Problem Solving # 43 : Smoothie Mixtures
  Word Problem (Mixtures) 5736 52% View Show
GMAT Problem Solving # 44 : Cleaning a Yacht
  Word Problem (Work) 4523 83% View Show
GMAT Problem Solving # 45 : Treadmill Running
  Word Problem (Work) 8678 20% View Show
GMAT Practice Set # 16          
GMAT Problem Solving # 46 : Algebraic Definition
  Algebra (Roots) 4541 73% View Show
GMAT Problem Solving # 47 : Basketball - Who Is on my team
 
  Combination / Permutation 5048 66% View Show
GMAT Problem Solving # 48 : Basketball Representatives
  Combination / Permutation 5425 58% View Show
GMAT Practice Set # 17          
GMAT Problem Solving # 49 : Basketball - Who is on my team (B)
  Combination / Permutation 20172 30% View Show
GMAT Problem Solving # 50 : Mini-Volleyball Teams
  Combination / Permutation 5024 58% View Show
GMAT Problem Solving # 51 : Team Assignments
  Probabilities 4039 78% View Show
GMAT Practice Set # 18          
GMAT Problem Solving # 52 : Taxi and Bus
  Rates 4827 67% View Show
GMAT Problem Solving # 53 : Racing Cars
  Rates 3596 81% View Show
GMAT Problem Solving # 54 : Kickball Competition
  Combination / Permutation 3417 82% View Show
GMAT Practice Set # 19          
GMAT Problem Solving # 55 : Mixing Rice
  Mixtures 4019 79% View Show
GMAT Problem Solving # 56 : Sand and Soil
  Mixtures 4376 55% View Show
GMAT Problem Solving # 57 : Dating Among Threes
  Combination / Permutation 3511 73% View Show
GMAT Practice Set # 20          
GMAT Problem Solving # 58 : Dating Among A Set of Medical Interns
  Combination / Permutation 4094 63% View Show
GMAT Problem Solving # 59 : Paycheck Averages
  3370 69% View Show
GMAT Problem Solving # 60 : Class Assignments
  Probabilities 4899 38% View Show
GMAT Practice Set # 21          
GMAT Problem Solving # 61 : Choosing a Literature Panel
  Combination / Permutation 3615 58% View Show
GMAT Problem Solving # 62 : Units Digit of Exponents
  Number Properties 4022 50% View Show
GMAT Problem Solving # 63 : Big Number divisible by 11
  Number Properties (divisibility) 3552 55% View Show
GMAT Practice Set # 22          
GMAT Problem Solving # 64 : Expression Divisible by 3
  Divisibility 3822 51% View Show
GMAT Problem Solving # 65 : Expression Not Divisible By
  Divisibility 3060 88% View Show
GMAT Problem Solving # 66 : Sum of Expression for 10 Integers
  Sum of Sequence 3388 59% View Show
GMAT Practice Set # 23          
GMAT Problem Solving # 67 : Triple Repayment Plan
  Sum of Sequence 3744 51% View Show
GMAT Problem Solving # 68 : Divisibility for Large Number
  Divisibility 3757 66% View Show
GMAT Problem Solving # 69 : Cooking Teams
  Combination / Permutation 3361 49% View Show
GMAT Practice Set # 24          
GMAT Problem Solving # 70 : Sum of Even Integers 102-200
  Sum of Sequence 2568 71% View Show
GMAT Problem Solving # 71 : Probability At Least 1 Pair
  Combination / Permutation 4566 44% View Show
GMAT Problem Solving # 72 : Hacking a Password
  Combination / Permutation 4131 60% View Show
GMAT Practice Set # 25          
GMAT Problem Solving # 73 : Length of Arc
  Geometry (Circles) 4167 53% View Show
GMAT Problem Solving # 74 : Fair Coin Toss 5 Times (ways)
  Combination / Permutation 3881 33% View Show
GMAT Problem Solving # 75 : Gallon Consumption Comparison
  Rate Problem 3120 69% View Show
GMAT Practice Set # 26          
GMAT Problem Solving # 76 : Car Seating Arrangement
  Combination / Permutation 6029 59% View Show
GMAT Problem Solving # 77 : Probability of a Digit in a 3-digit Number
  Number Properties (Digits) 3891 41% View Show
GMAT Problem Solving # 78 : Least Common Multiple Thru 8
  Number Properties (LCM) 2873 71% View Show
GMAT Practice Set # 27          
GMAT Problem Solving # 79 : Quality Control on Glass Smartphones
  Probability 3360 53% View Show
GMAT Problem Solving # 80 : Integrated Team Formations
  Combination / Permutation 2520 88% View Show
GMAT Problem Solving # 81 : Exponent Manipulation
  Exponents 2691 88% View Show
GMAT Practice Set # 28          
GMAT Problem Solving # 82 : Red Striped Golf Balls
 
  Probability 2882 74% View Show
GMAT Problem Solving # 83 : Sum of Two Exponents
  Number Properties (Exponent) 2886 77% View Show
GMAT Problem Solving # 84 : Passwords 4 or 5 characters
  Combination / Permutation 3269 41% View Show
GMAT Practice Set # 29          
GMAT Problem Solving # 85
  2043 69% View Show
GMAT Problem Solving # 86 : OG13-230
 
  Large Exponents 3535 56% View Show
GMAT Problem Solving # 87 : OG13-229
 
  Fractional Inequality 3593 40% View Show
GMAT Practice Set # 30          
GMAT Problem Solving # 88 : OG13-228
 
  Coordinate Geometry 2828 54% View Show
GMAT Problem Solving # 89 : OG13-227
 
  Decimal and Powers of 10 2221 62% View Show
GMAT Problem Solving # 90 : OG13-226
 
  Word Problem (Fractions) 2146 72% View Show
GMAT Practice Set # 31          
GMAT Problem Solving # 91 : OG13-225
 
  Odd and Even Integers 2027 70% View Show
GMAT Problem Solving # 92 : OG13-224
 
  Mixtures 3044 67% View Show
GMAT Problem Solving # 93 : OG13-223
 
  Algebra 1533 83% View Show
GMAT Practice Set # 32          
GMAT Problem Solving # 94 : OG13-222
 
  Venn Diagram 2197 75% View Show
GMAT Problem Solving # 95 : OG13-221
 
  Number Properties (Consecutive Integers) 1396 87% View Show
GMAT Problem Solving # 96 : OG13-220
 
  Algebra (Fractions) 1510 91% View Show
GMAT Practice Set # 33          
GMAT Problem Solving # 97 : OG13-219
 
  Word Problem (Factors) 1575 76% View Show
GMAT Problem Solving # 98 : OG13-218
 
  Decimal Digits 3013 30% View Show
GMAT Problem Solving # 99 : OG 13-217
 
  Fractions, Negative Exponents 1699 90% View Show
GMAT Practice Set # 34          
GMAT Problem Solving # 100 : OG13-216
 
  Fractions and Equations 1801 83% View Show
GMAT Problem Solving # 101 : OG13-215
 
  Word Problem (Probability) 1797 78% View Show
GMAT Problem Solving # 102 : OG13-214
 
  Word Problem (Algebra) 1607 68% View Show
GMAT Practice Set # 35          
GMAT Problem Solving # 103 : OG13-213
 
  Geometry 1693 85% View Show
GMAT Problem Solving # 104 : OG13-212
 
  Number Properties 1729 86% View Show
GMAT Problem Solving # 105 : OG13-211
 
  Geometry (Coordinates) 1433 67% View Show
GMAT Practice Set # 36          
GMAT Problem Solving # 106 : OG13-210
 
  Geometry (Lines and Angles) 1547 86% View Show
GMAT Problem Solving # 107 : OG13-209
 
  Algebra 2265 56% View Show
GMAT Problem Solving # 108 : Function of y and 1-y
  Functions 2017 66% View Show
GMAT Practice Set # 37          
GMAT Problem Solving # 109 : Committee at most 1 married couple
  Combination / Permutation 3244 28% View Show
GMAT Problem Solving # 110 : MBA Admissions Committee
  Combination / Permutation 3076 39% View Show
GMAT Problem Solving # 111 : MBA Admissions Committee 2
  Combination / Permutation 3092 28% View Show
GMAT Practice Set # 38          
GMAT Problem Solving # 112 : Marbles in Pockets
  Combination / Permutation 3528 9% View Show
GMAT Problem Solving # 113 : Marbles in Pockets 2
  Combination / Permutation 3133 25% View Show
GMAT Problem Solving # 114 : Mixed Tennis
  Combination / Permutation 2794 21% View Show
GMAT Practice Set # 39          
GMAT Problem Solving # 115 : Movie Date and Couples
  Combination / Permutation 2883 34% View Show
GMAT Problem Solving # 116 : Probability of divisibility
  Divisibility 2794 29% View Show
GMAT Problem Solving # 117 : Roll a Double Dice
  Probability 2625 58% View Show
GMAT Practice Set # 40          
GMAT Problem Solving # 118 : Right Triangle in Circle
  Geometry 2142 81% View Show
GMAT Problem Solving # 119 : Maxwell and Brad Meet 1
  Rate Problem 2188 84% View Show
GMAT Problem Solving # 120 : Maxwell and Brad Meet 2
  Rate Problem 1984 81% View Show
GMAT Practice Set # 41          
GMAT Problem Solving # 121 : Maxwell and Brad Meet 3
  Rate Problem 2524 68% View Show
GMAT Problem Solving # 122 : Maxwell and Brad Meet 4
  Rate Problem 2300 74% View Show
GMAT Problem Solving # 123 : Less than 10 percent both are male
  Combination / Permutation 2140 38% View Show
GMAT Practice Set # 42          
GMAT Problem Solving # 124 : Triplets in Triathlon
  Combinatorics 1282 54% View Show
GMAT Problem Solving # 125 : Expression must be an integer
  Divisibility 1340 42% View Show
GMAT Problem Solving # 126 : Products and Factors
  1506 32% View Show
GMAT Practice Set # 43          
GMAT Problem Solving # 127 : Geometry
  Squares & Triangles 2237 27% View Show
GMAT Problem Solving # 128 : Circle inscribed in Triangle
  Geometry (Circles and Triangles) 2174 30% View Show
GMAT Practice Set # 44          
GMAT Problem Solving # 129 : Python and Rails Developers
  Combination / Permutation 3462 61% View Show
GMAT Problem Solving # 130 : Algebraic Expression with Exponents
  Algebra (Exponents) 2631 71% View Show
GMAT Problem Solving # 131 : Square Root of a Number
  Algebra (Roots) 2631 86% View Show
GMAT Practice Set # 45          
GMAT Problem Solving # 132 : Demographic Statistics
  Word Problem (Probability) 3835 47% View Show
GMAT Problem Solving # 133 : Simple Arithmetic
  Word Problem (Algebra) 2513 91% View Show
GMAT Problem Solving # 134 : Sales of Diamond Rings
  Word Problem (Algebra) 2616 71% View Show
GMAT Practice Set # 46          
GMAT Problem Solving # 135 : Inequality Solution Sets
  Numberline 4937 41% View Show
GMAT Problem Solving # 136 : Chemical Air Ventillation
  Word Problem (Work) 2490 77% View Show
GMAT Problem Solving # 137 : Accounting and Gender
  Word Problem (Probability) 2907 69% View Show
GMAT Practice Set # 47          
GMAT Problem Solving # 138 : Semicircle Coordinates
  Word Problem (Geometry) 2458 54% View Show
GMAT Problem Solving # 139 : Flexible Rubber Belt
  Circles and Shapes 2679 64% View Show
GMAT Problem Solving # 140 : Monthly Savings
  Word Problem (Fractions) 2410 60% View Show
GMAT Practice Set # 48          
GMAT Problem Solving # 141 : Function Constraints
  Number Properties (Functions) 1829 70% View Show
GMAT Problem Solving # 142 : Growth in Population
  Word Problem (Arithmetic) 2102 80% View Show
GMAT Problem Solving # 143 : Snack Sales
  World Problem (Arithmetic) 1758 77% View Show
GMAT Practice Set # 49          
GMAT Problem Solving # 144 : Area of Triangle
  Geometry (Triangle) 3367 43% View Show
GMAT Problem Solving # 145 : Sum of Squares
  Number Properties (Squares) 2796 60% View Show
GMAT Problem Solving # 146 : Basket Ratios
  Algebra 2373 53% View Show
GMAT Practice Set # 50          
GMAT Problem Solving # 147 : Rectangle Ratios
  Geometry 2569 66% View Show
GMAT Problem Solving # 148 : Headcount Reduction
  Algebra 2971 54% View Show
GMAT Problem Solving # 149 : Area of Two New Shapes
  Geometry 2055 71% View Show
GMAT Practice Set # 51          
GMAT Problem Solving # 150 : Hiring Assistant Managers
  Combination / Permutation 1953 71% View Show
GMAT Problem Solving # 151 : Unit Sales for Products
  Arithemtic (mean/median) 1729 78% View Show
GMAT Problem Solving # 152 : Advising Banking Deals
  Combination / Permutation 1988 69% View Show
GMAT Practice Set # 52          
GMAT Problem Solving # 153 : Average Car Speed
  Rate Problem 2070 72% View Show
GMAT Problem Solving # 154 : Conference Table Arrangements
  Combination / Permutation 2061 69% View Show
GMAT Problem Solving # 155 : Picking a Lab Partner
  Combination / Permutation 2011 39% View Show
GMAT Practice Set # 53          
GMAT Problem Solving # 156 : Apartment Bidding War
  Arithemtic (mean/median) 1835 93% View Show
GMAT Problem Solving # 157 : Even Expression
  Algebra 2108 65% View Show
GMAT Problem Solving # 158 : Bond Investment Yields
  Algebra 2630 60% View Show
GMAT Practice Set # 54          
GMAT Problem Solving # 159 : Sequencing the Human Genome (num days)
  Rate Problem 2117 74% View Show
GMAT Problem Solving # 160 : Circular Gears
  Rate Problem 5339 74% View Show
GMAT Problem Solving # 161 : Hiring in 3 Locations
  Probabilities 1829 79% View Show
GMAT Practice Set # 55          
GMAT Problem Solving # 162 : Finding a Co-Founder
  Combination / Permutation 2023 62% View Show
GMAT Problem Solving # 163 : Circle Arrangements
  Combination / Permutation 2365 52% View Show
GMAT Problem Solving # 164 : Sequencing the Human Genome (num machines)
  Rate Problem 2147 67% View Show
GMAT Practice Set # 56          
GMAT Problem Solving # 165 : Sequencing the Human Genome (different num of computers)
  Rate Problem 2056 64% View Show
GMAT Problem Solving # 166 : Area of Square Region
  Geometry 2973 61% View Show
GMAT Problem Solving # 167 : Warehouse Digits Leading Zeros
  Variations 2638 45% View Show
GMAT Practice Set # 57          
GMAT Problem Solving # 168 : Choosing a Literature Panel
  Combination / Permutation 1925 65% View Show
GMAT Problem Solving # 169 : Investing in Savings Account
  Interest Rate 1776 38% View Show
GMAT Problem Solving # 170 : Investing in Savings Account - interest
  Interest Rate 1565 62% View Show
GMAT Practice Set # 58          
GMAT Problem Solving # 171 : Sum of Expression for 11 Integers
  Sum of Sequence 2590 60% View Show
GMAT Problem Solving # 172 : Sum of Expression for 5 Integers
  Sum of Sequence 2149 62% View Show
GMAT Problem Solving # 173 : Sum of Expression for Even Integers
  Sum of Sequence 2696 36% View Show
GMAT Practice Set # 59          
GMAT Problem Solving # 174 : Sum of First 50 Odd Integers
  Sum of Sequence 2586 74% View Show
GMAT Problem Solving # 175 : Sum of Odd Integers 102-200
  Sum of Sequence 3031 67% View Show
GMAT Problem Solving # 176 : Length of Arc Tip
  Geometry (Circles) 2608 63% View Show
GMAT Practice Set # 60          
GMAT Problem Solving # 177 : Fair Coin Toss 5 Times (probability)
  Combination / Permutation 3342 37% View Show
GMAT Problem Solving # 178 : Car Seating Arrangement (father in back)
  Combination / Permutation 2311 49% View Show
GMAT Problem Solving # 179 : Car Seating Arrangement (father center back)
  Combination / Permutation 1814 86% View Show
GMAT Practice Set # 61          
GMAT Problem Solving # 180 : Car Seating Arrangement (Matt Peter cannot sit next to each other)
  Combination / Permutation 3014 42% View Show
GMAT Problem Solving # 181 : Circular Seating Table
  Combinatorics 2560 60% View Show
GMAT Problem Solving # 182 : Algebraic Equality
  Algebra 2005 67% View Show
GMAT Practice Set # 62          
GMAT Problem Solving # 183 : Sharing Donuts
  Combinatorics 2654 29% View Show
GMAT Problem Solving # 184 : Distance Rate Question
  Rates 2148 58% View Show
GMAT Problem Solving # 185 : Looking into the Pool
  Geometry 1662 79% View Show
GMAT Practice Set # 63          
GMAT Problem Solving # 186 : Function as Product of All Odd Integers
  Number Properties 1686 62% View Show

Take a full-length Practice Test (Beta)

This is your typical math section that involves a math simplification/calculation question. You'll need to understand number properties -- how do you combine expressions that involve exponents? How do you know if certain expressions can be positive or negative? How is squaring a fraction different from squaring an actual number?

In geometry and coordinates - you'll need to find the value of certain angles, or the length of certain segments with only the available information given.

Perhaps the more difficult questions are the ones that involve a lot of fractional algebra, rate word problems, mixtures, and combination/permutation related math questions.

But before you can attack these more difficult math questions, you need to solidify your quant fundamentals and equip yourself with tactical strategies that help you solve math questions in as little time as possible. The key is efficiency so you can use that extra time on the extra hard questions.

GMAT Tip: Visualize your Actual Test Center Before You Study Each GMAT Question

Watch a FREE GMAT Combinations + Poker Probability Lesson

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